To analyze the detection effect of multislieces helieal CT (MSCT) on the imaging features of low lumbar disc herniation, including disc deformity, spinal cord degeneration, and dural sac compression.

A total of 66 patients with low lumbar disc herniation confirmed by pathological analysis in our hospital from March 2022 to March 2024 were selected as the research subjects. All patients underwent X-ray and MSCT examinations to analyze the detection situation and imaging features.

The detection rate of MSCT (98.48%) was higher than that of X-ray (87.88%), with a statistically significant difference (P<0.05). In the imaging feature examination, the detection rates of MSCT for disc deformity (96.88%), spinal cord degeneration (93.02%), nerve root compression (92.11%), dural sac compression (97.78%), calcification (98.08%), and gas accumulation (97.83%) were higher than those of X-ray (78.13%, 4.65%, 2.63%, 64.44%, 67.31%, 45.65%), with statistically significant differences (P<0.05). In the prediction of different degrees of degenerative changes in low lumbar disc herniation by MSCT imaging parameters, the sagittal flexion angles of the moderate and severe groups were (162.39±5.51)° and (171.83±8.78)°, respectively, which were higher than that of the mild group [(153.02±5.03)°]. The sagittal diameters of the dural sac of the moderate and severe groups were (10.97±0.84) and (7.52±0.52) mm, respectively, which were lower than that of the mild group [(15.83±1.06) mm], and the endplate flexion depths of the moderate and severe groups were (1.96±0.11) and (1.42±0.06) mm, respectively, which were lower than that of the mild group [(2.49±0.14) mm], with statistically significant differences (P<0.05).

MSCT technology can provide more accurate imaging features in the diagnosis of low lumbar disc herniation and can provide relevant reference basis for physicians to assess the degree of the disease.